jUtils

Java utilities - DB access (Singleton pattern for mysql, hive, mongo), File, Date general utilities.

Dependencies:

1. Morphia Repository

   • package: com.google.code.morphia
     • version: 0.99

2. Cloudera Repositories

   • package: org.apache.hadoop
     • name: hadoop-core; version: 2.0.0-mr1-cdh4.1.2
     • name: hadoop-common; version: 2.0.0-cdh4.1.2
     • name: hadoop-auth; version: 2.0.0-cdh4.1.2
     • name: hadoop-annotations; version: 2.0.0-cdh4.1.2
   • package: org.apache.hive
     • name: hive-jdbc; version: 0.9.0-cdh4.1.2

References:

1. Maxmind downloads

   • http://dev.maxmind.com/static/csv/codes/maxmind/region.csv
   • http://geolite.maxmind.com/download/geoip/database/GeoLiteCity_CSV/GeoLiteCity-latest.zip

2. Geonames downloads

   • http://www.geonames.org/
   • http://download.geonames.org/export/dump/

3. Latitude Longitude distance reference:

   • http://www.movable-type.co.uk/scripts/latlong.html

   • Example test output: Running com.grooveshark.util.MathUtilsTest

     Gainesville - Jacksonville distance in kms

     Spherical: 99.3965072749399 Haversine: 99.39650727499613

     Gainesville - Miami distance in kms

     Spherical: 479.4423493165074 Haversine: 479.442349316516 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.133 sec